"Emergency role" for system administrators

Hello

Our SAP system administrators have more or less very comprehensive authorizations.

For emergency cases we are looking for a "near-by-SAP_ALL" role which the administrators are able to assign themselves.

Does anyone have experiences which considerations must be taken into account?

There is a list of possible transaction codes for administrators like this one:

http://www.sap-img.com/basis/useful-sap-system-administration-transactions.htm

But this list is not complete, the guys sometimes need more...

Any ideas

Thanks

BEO